Oliver m



(No Model.)

I 0. M. HIDDEN.

KNOB. ATTACHMENT. T No. 261,604. Patented July 25, 1882.

UNITED STATES PATE T OFFICE.

OLIVER M. HIDDEN, OF DETROIT, MICHIGAN, ASSIGNOR TO THE UNION DOOR KNOB COMPANY, OF SAME PLACE.

KNQB ATTACHMENT.

sPEcIFIcATmN forming part of Letters Patent No. 261,604., dated July 25, 1882.

' Application filed March 29,1882. (No model.)

To all whom it may concern:

Be it known that I, OLIVER M. HIDDEN, of Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Door Knob Attachments; and I herebydeclare that the following is a full, clear, and exact description thereof, reference being had totheaccompanyingdrawings,which forms a part of this specification.

The nature of this invention relates to certain new and useful improvements'in the construction of attachments to door-knobs, by

means of which said knobs may be applied to doors of various thicknesses.

The invention consists in the peculiar-construction and application of a stirrup,"which is held in frictional contact with'the spindle by the neck of the. knob, and in the various combinations of the parts, all asuiore fully hereinafter set forth.

In the accompanying drawing, in which my invention is shown in longitudinal section, A represents a door-knob, which is provided with the neck or shank-B in the usual manner. This neck is provided with the usual central longitudinal hole, with the exception that in this case two of the sides of suchhole taper from the larger outer end to the smaller inner end.

0 represents a stirrup, the inner faces of the legs of which are parallel to each other, and separated a distance equalto the thickness of the spindle D. The outer endsof the legs of this stirrup terminate in flanges or studs a, and from these studs or shoulders the outer faces of the legs of the stirrup taper to the inner end or head, I), thus making such legs wedge shape. The spindle D is of a uniform size its entire length, oneend designed to carry the knob above described, While the opposite end is driven into the knob E, having its pro truding end planed down, as at 0, thus rigidly securing such knob to place.

In practice the spindle D, carrying the knob E, is inserted through the door, and the stirrup O is. placed over the protruding end of the spindle, the shoulders or entering the rose. The knob A, with its neck B, is then pushed upon the stirrup, which compresses the legs of the stirrup firmly upon the spindle, and the knob and stirrup are secured together by means of the screw F, which passes through the knob and. engages with the head 11 of the stirrup.

, I am aware of Patents Nos. 250,662 and 253,956, and do not claim the construction shown in either.

What I claim as new is In a. door-knob attachment, the combination of the shank B, having inclined inner walls,

yoke 0, having legs with inclined outer snr faces, and stops 0., spindle D, and screw F, with the knob A, all constructed and operating substantially as and for the purpose set forth.

0. M. HIDDEN.

Witnesses GEO. BROWN, L. PLANT. 

